User's Manual

6
2.3 Definition of interface connector pin
Pin No.
Input/output
definition
1
Input
VCC
2
Input
VCC
3
Input/output
GND
4
Input/output
GND
5
NC
No use
6
Input
Enable
7
Output
TXD （UHF data output）
8
NC
No use
9
Input
RXD （UHF data input）
10
NC
No use
11
NC
No use
12
NC
No use
13
NC
No use
14
NC
No use
15
NC
No use
16
NC
No use
17
Input
Config (default as high radio data mode, need to pull
low configuration to enter command mode)
18
NC
No use
19
NC
No use
20
NC
No use